Properties of the Number 2800

Two Thousand Eight Hundred

Basics

Value: 2799 → 2800 → 2801

Parity: even

Prime: No

Previous Prime: 2797

Next Prime: 2801

Digit Sum: 10

Digital Root: 1

Palindrome: No

Factorization: 2 ⁴ × 5 ² × 7

Divisors: 1, 2, 4, 5, 7, 8, 10, 14, 16, 20

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 101011110000

Octal: 5360

Duodecimal: 1754

Hexadecimal: af0

Square: 7840000

Square Root: 52.91502622129181

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Number of step shifted (decimated) sequences using a maximum of two different symbols. A56371

Exponential Riordan array (1, x·cosh(x)). A185951

Coordination sequence for "tcd" 3D uniform tiling. A299287

Number of reduced words of length n in the Weyl group D₇. A162210

Number of partitions of n that sorted in increasing order contain a part k in position k for some k. A238395

Numbers whose sum of prime indices is twice their number, counted with multiplicity in both cases. A340387

Numerator of 1/9 - 1/n². A61039

Triangle read by rows: coefficients T(n,k) of a binomial decomposition of nⁿ as Sum(k=0..n)T(n,k)*binomial(n,k). A244120

Triangle read by rows: terms T(n,k) of a binomial decomposition of nⁿ as Sum(k=0..n)T(n,k). A244123

Numbers n such that the decimal expansions of both n and n² have 0 as smallest digit and 8 as largest digit. A256708